kernel BUG in sched.c

[Brad Parker]

I got a kernel BUG mentioning the process ospfd (zebra/quagga routing
protocol daemon) while trying to  "shutdown -r now", I already contaced the
quagga people, but I thought maybe this would be a kernel issue, so here
goes:

the machine is a Soekris net4521 (Elan SC520 cpu)

the output:

-bash-2.05b# shutdown -r now
INIT: Sending processes started by init the TERM signal
INIT: Sending all processes the TERM signal...
cardmgr[53]: exeScheduling in interrupt
cuting: './netwokernel BUG at sched.c:564!
invalid operand: 0000
CPU:    0
EIP:    0010:[<c0115a7b>]    Not tainted
EFLAGS: 00010282
eax: 00000018   ebx: c11be280   ecx: 00000001   edx: 00000001
esi: c38a6000   edi: c38a6000   ebp: c38a7fa0   esp: c38a7f80
ds: 0018   es: 0018   ss: 0018
Process ospfd (pid: 85, stackpage=c38a7000)
Stack: c02d798a c38a6000 c38a6000 00000000 c38a6000 c11be280 c10b5200
c38a6000
       00000000 c011b51d c38a6000 4018db4c 00000000 bffff85c c011b65f
00000000
       c01071d3 00000000 00000001 00000000 4018db4c 00000000 bffff85c
00000001
Call Trace:    [<c011b51d>] [<c011b65f>] [<c01071d3>]

Code: 0f 0b 34 02 82 79 2d c0 5a e9 1c fd ff ff 0f 0b 2d 02 82 79
<0>Kernel panic: Aiee, killing interrupt handler!

In interrupt handler - not syncing
 <6>wlan0: SW TICK stuck? bits=0x0 EvStat=8000 IntEn=e09f
wlan1: SW TICK stuck? bits=0x0 EvStat=8000 IntEn=e09f
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan0: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018
wlan1: SW TICK stuck? bits=0x0 EvStat=8080 IntEn=e018


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